"This finding is the first direct evidence of water’s interstellar journey from clouds to the materials that form planetary ...

NASA launched an exoplanet-hunting experiment Oct. 1 despite the government shutdown. After the mission's end on Oct. 2, news ...

Astronomers have yet to find irrefutable proof for any natural satellites of exoplanets—so-called exomoons—but as ...

Data from the James Webb Space Telescope and other observatories suggests a supervolcanic exomoon may lurk around the giant ...

For decades, chemistry students have learned a simple truth: polar and nonpolar substances don’t mix. Water and oil stay ...

A new theory from a scientist working with NASA, raises a surprising question about extraterrestrial life and why they might have stopped reaching out to humanity altogether.

Earth’s turbulent atmosphere makes it hard to detect new planets from the ground. Astronomer Rebecca Jensen-Clem is working ...

Did NASA find another Earth? Scientists look to the sky to find a copy of our planet, and some experts think they may have ...

Scientists detect heavy water in a planet-forming disk for the first time, revealing ancient cosmic origins. Read the full ...

Researchers have discovered a completely new type of ice that can form at room temperature when water is subjected to immense ...